A new structure water pump

Abstract

The utility model discloses a new structure water pump, shell includes side wall part and sets up liquid flow channel part in the periphery of side wall part, and side wall part is connected with water inlet joint and water outlet joint, and the both ends of side wall part height direction are equipped with first connecting groove and second connecting groove along the circumferential arrangement respectively, and the cavity between side wall part and liquid flow channel part is communicated to water inlet joint, and water outlet joint is communicated to liquid flow channel part, the support is set up between liquid flow channel part and second end cover, the stator core subassembly is set up between support and second end cover, the circuit board subassembly is set up between support and second end cover and is connected with stator core subassembly electricity, and impeller subassembly rotation sets up on support and is located liquid flow channel part inside, first glue filling fixed body sets up in first connecting groove, is used for with first end cover and shell fixed connection, second glue filling fixed body sets up in second connecting groove, is used for with second end cover, support and shell fixed connection. The utility model provides a water pump, simple structure, improves the sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of water pump technology, and in particular to a new type of water pump. Background Technology

[0002] Currently, most water pumps on the market are quite thick, and achieving a complete seal is difficult, making it challenging to thin them for use in confined spaces. Their structures typically use a combination of upper and lower sections, which makes rubber ring seals prone to aging, and the high-pressure screw structure susceptible to deformation and leakage. Furthermore, assembly is difficult, time-consuming, and carries the risk of leaks and seepage. Utility Model Content

[0003] Based on the above problems, the purpose of this utility model is to provide a new type of water pump that is easy to assemble and has good sealing and corrosion resistance.

[0004] To overcome the shortcomings of the existing technology, the technical solution provided by this utility model is as follows:

[0005] A novel water pump includes:

[0006] The outer casing includes a side wall portion and a liquid flow channel portion disposed on the inner periphery of the side wall portion. The side wall portion is connected to a water inlet connector and a water outlet connector. The two ends of the side wall portion in the height direction are respectively provided with a first connecting groove and a second connecting groove arranged in the circumferential direction. There is a cavity portion between the side wall portion and the liquid flow channel portion that communicates with the water inlet connector. The water outlet connector communicates with the liquid flow channel portion.

[0007] The first end cap is fixed inside the first connecting groove;

[0008] The second end cap is fixed inside the second connecting groove;

[0009] A bracket is disposed between the liquid flow channel portion and the second end cap;

[0010] A stator core assembly is disposed between the bracket and the second end cover;

[0011] A circuit board assembly is disposed between the bracket and the second end cover and is electrically connected to the stator core assembly;

[0012] An impeller assembly, which is rotatably mounted on the bracket and located inside the liquid flow channel;

[0013] The first potting fixing body is disposed in the first connecting groove and is used to fix the first end cap to the outer shell.

[0014] The second glue-filled fixing body is disposed in the second connecting groove and is used to fix the second end cap, bracket and outer shell together.

[0015] In one embodiment, the bracket includes a first support portion recessed from the first end cap toward the second end cap, a second support portion disposed on the outer periphery of the first support portion and protruding toward the first end cap, a third support portion disposed on one side of the second support portion and abutting against the second end cap, a fourth support portion disposed on the other side of the second support portion and protruding toward the first end cap, and a fifth support portion connecting the second support portion and the fourth support portion.

[0016] The impeller assembly is installed in the first accommodating cavity formed by the first support portion, the stator core assembly is installed in the second accommodating cavity formed by the second support portion, the circuit board assembly is installed in the third accommodating cavity formed by the fourth support portion, and the fifth support portion is provided with multiple wire grooves for wires to pass through.

[0017] In one embodiment, the outer end of the third support is bent and limited on the limiting step on the outer shell and connected to the second potting fixing body.

[0018] In one embodiment, the outer end of the fourth support abuts against the second end cap and the side is connected to the second potting fixing body.

[0019] In one embodiment, a mandrel is fixed in the first accommodating cavity of the first support portion, and the impeller assembly is supported on the mandrel by a bearing.

[0020] In one embodiment, a mandrel positioning stage is provided in the first accommodating cavity, and the mandrel is fixedly connected to the mandrel positioning stage.

[0021] In one embodiment, the impeller assembly includes an impeller and a magnet fixed to the inner circumference of the impeller, the impeller being disposed on the outer circumference of the second support.

[0022] In one embodiment, a plurality of reinforcing ribs are connected between the liquid flow channel portion and the sidewall portion.

[0023] In one embodiment, the first end cap includes a first cover body and a first fixing foot disposed on the periphery of the first cover body, the first fixing foot extending into the first connecting groove and fixedly connected to the first potting fixing body.

[0024] In one embodiment, the second end cap includes a second cover body and a second fixing foot disposed on the periphery of the second cover body, the second fixing foot extending into the second connecting groove and fixedly connected to the second potting fixing body.

[0025] Compared with the prior art, the advantages of this utility model are:

[0026] 1. The use of two end caps with glue sealing technology eliminates the need for rubber sealing rings and fixing screws, simplifying the water pump structure while improving the water pump's sealing performance and service life.

[0027] 2. The adopted support structure allows for the partitioning of stator core assemblies, circuit board assemblies, and impeller assemblies, improving the compactness and stability of the structure. Attached Figure Description

[0028] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the following description of the embodiments will be briefly introduced. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0029] Figure 1 This is a schematic diagram of a novel water pump embodiment of the present invention;

[0030] Figure 2 This is a disassembly diagram of an embodiment of the present utility model;

[0031] Figure 3 This is one of the structural schematic diagrams of the outer shell in the embodiments of this utility model;

[0032] Figure 4 This is a second schematic diagram of the outer shell in an embodiment of this utility model;

[0033] Figure 5 This is one of the structural schematic diagrams of the bracket in the embodiments of this utility model;

[0034] Figure 6 This is the second structural schematic diagram of the bracket in the embodiments of this utility model;

[0035] Figure 7 This is the third structural schematic diagram of the bracket in the embodiments of this utility model;

[0036] in:

[0037] 1. Outer shell; 1-1. Outer side wall; 1-2. Inner side wall; 1-3. First connecting groove; 1-4. Second connecting groove; 1-5. Liquid flow channel; 1-6. Water inlet connector; 1-7. Water outlet connector; 1-8. Reinforcing rib;

[0038] 2. First end cap; 2-1. First cover body; 2-2. First fixing foot;

[0039] 3. Second end cap; 3-1. Second end cap; 3-2. Second fixing foot;

[0040] 4. Bracket; 4-1. First support part; 4-1a. First receiving cavity; 4-2. Second support part; 4-2a. Second receiving cavity; 4-3. Third support part; 4-4. Fourth support part; 4-4a. Third receiving cavity; 4-5. Fifth support part; 4-6. Mandrel positioning stage;

[0041] 5. Stator core assembly; 5-1. Stator core; 5-2. Stator winding;

[0042] 6. Impeller assembly; 6-1. Impeller; 6-2. Magnet;

[0043] 7. Circuit board assembly;

[0044] 8. Mandrel;

[0045] 9. Bearings;

[0046] 10. First glue-filled fixing body;

[0047] 11. Second glue-filled fixing body. Detailed Implementation

[0048] The above solution will be further described below with reference to specific embodiments. It should be understood that these embodiments are for illustrating the present invention and are not intended to limit the scope of the present invention. The implementation conditions used in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0049] See Figure 1 and Figure 2 The diagram below shows a structural schematic of an embodiment of the present invention. A novel water pump is provided, comprising a housing 1, a first end cap 2, a second end cap 3, a first potting fixing body 10, a second potting fixing body 11, and a bracket 4, a stator core assembly 5, a circuit board assembly 7, and an impeller assembly 6 arranged within the housing 1. The first potting fixing body 10 fixes the first end cap 2 to the housing 1, and the second potting fixing body 11 fixes the second end cap 3, the bracket 4, and the housing 1.

[0050] like Figure 3 and Figure 4 As shown, the outer casing 1 includes a side wall portion and a liquid flow channel portion 1-5 disposed on the inner circumference of the side wall portion. A water inlet connector 1-6 and a water outlet connector 1-7 are respectively connected to opposite ends of the side wall portion. A first connecting groove 1-3 and a second connecting groove 1-4 arranged circumferentially are respectively provided at both ends of the side wall portion in the height direction. There is a cavity portion between the side wall portion and the liquid flow channel portion 1-5 that connects to the water inlet connector 1-6. The water outlet connector 1-7 connects to the liquid flow channel portion 1-5.

[0051] The sidewall portion includes an outer sidewall 1-1 and an inner sidewall 1-2. The first connecting groove 1-3 and the second connecting groove 1-4 are disposed between the outer sidewall 1-1 and the inner sidewall 1-2. Both are grooves that are recessed from the end of the sidewall portion towards the middle, and the first connecting groove 1-3 and the second connecting groove 1-4 are separated from each other.

[0052] To improve structural stability, multiple reinforcing ribs 1-8 are connected between the liquid flow channel 1-5 and the inner sidewall 1-2.

[0053] The first end cap 2, fixed within the first connecting groove 1-3, includes a first cover body 2-1 and a first fixing foot 2-2 disposed on the outer periphery of the first cover body 2-1. The first fixing foot 2-2 extends into the first connecting groove 2-1 and connects with the first potting fixing body 10. To improve the compactness of the structure, the inner sidewall 1-2 of the sidewall portion is smaller in height than the outer sidewall 1-1, so that the first cover body 2-1 overlaps the inner sidewall 1-2, making the outer end face of the first cover body 2-1 flush with the outer sidewall 1-1.

[0054] The second end cap 3 is fixed in the second connecting groove 1-4. It includes a second cover body 3-1 and a second fixing foot 3-2 disposed on the outer periphery of the second cover body 3-1. The second fixing foot 3-2 extends into the second connecting groove 1-4 and connects with the second potting fixing body 11, so that the outer end face of the second cover body 3-1 is flush with the outer side wall 1-1.

[0055] Support 4 is disposed between the liquid flow channel section 1-5 and the second end cap 3, such as Figures 5 to 7 As shown, it includes a first support portion 4-1 recessed from the first end cap 2 toward the second end cap 3, a second support portion 4-2 arranged on the outer periphery of the first support portion 4-1 and protruding toward the first end cap 2, a third support portion 4-3 arranged on one side of the second support portion 4-2 and abutting against the second end cap 3, a fourth support portion 4-4 arranged on the other side of the second support portion 4-2 and protruding toward the first end cap 2, and a fifth support portion 4-5 connecting the second support portion 4-2 and the fourth support portion 4-4.

[0056] The impeller assembly 6 is installed in the first accommodating cavity 4-1a formed by the first support part 4-1, the stator core assembly 5 is installed in the second accommodating cavity 4-2a formed by the second support part 4-2, and the circuit board assembly 7 is installed in the third accommodating cavity 4-4a formed by the fourth support part 4-4. The fifth support part 4-5 is provided with multiple wire grooves for wires to pass through. In this way, the impeller assembly 6, the stator core assembly 5, and the circuit board assembly 7 are installed in separate sections, which improves the compactness and stability of the structure.

[0057] To improve the compactness of the structure, the outer end of the third support portion 4-3 is bent and limited on the limiting step of the inner sidewall 1-2 and connected to the second potting fixing body 11. The outer end of the fourth support portion 4-4 abuts against the second end cap 2 and its side is connected to the second potting fixing body 11. Preferably, the outer periphery of the fourth support portion 4-4 abuts between the liquid flow channel portion 1-4 and the inner sidewall 1-2 to improve the compactness and stability of the structure.

[0058] The impeller assembly 6, rotatably mounted on the bracket 4 and located within the liquid flow channel 1-5, includes an impeller 6-1 and a magnet 6-2 fixed to the inner circumference of the impeller 6-1. A mandrel 8 is fixed within the first receiving cavity 4-1a of the first support portion 4-1. The impeller 6-1 is rotatably supported on the mandrel 8 via a bearing 9 and covers the outer circumference of the second support portion 4-2. Specifically, a mandrel positioning platform 4-6 is provided within the first receiving cavity 4-1a, and the mandrel 8 is fixedly connected to the mandrel positioning platform 4-6. To improve structural stability, multiple reinforcing connectors are provided between the mandrel positioning platform 4-6 and the first receiving cavity 4-1a.

[0059] The stator core assembly 5 is disposed between the bracket 4 and the second end cover 3, and includes a stator core 5-1 and a stator winding 5-2 arranged on the stator core 5-1. The stator core assembly 5 is installed in the second accommodating cavity 4-2a formed by the second support part 4-2. Thus, the stator core assembly 5 is correspondingly arranged with the magnet 6-2. The magnetic field generated by energizing the stator core assembly 5 can drive the impeller 6-1 to rotate, so as to bring the fluid into the liquid flow channel 1-5 through the water inlet connector 1-6, and then discharge it through the water outlet connector 1-7.

[0060] The circuit board assembly 7 is disposed between the bracket 4 and the second end cover 3 and is electrically connected to the stator core assembly 5. It is connected to the stator winding 5-2 and the power supply through wires to realize the connection between the stator winding 5-2 and the external circuit. Correspondingly, the housing 1 and the bracket 4 are respectively provided with through slots for wires to pass through, so that the circuit board assembly 7 can be connected to the external control circuit.

[0061] The first potting fixing body 10 is disposed within the first connecting groove 1-3, and is formed by injecting commonly used potting compound into the first connecting groove 1-3 and allowing it to cure naturally. The second potting fixing body 11 is disposed within the second connecting groove 1-4, and is formed by injecting commonly used potting compound into the second connecting groove 1-4 and allowing it to cure naturally. Commonly used potting compounds include epoxy resin potting compounds, silicone resin potting compounds, and polyurethane potting compounds, which can be selected according to needs.

[0062] During installation, the stator core assembly 5 is installed in the second accommodating cavity 4-2a, the circuit board assembly 7 is installed in the third accommodating cavity 4-4a, the wires are connected, and the bracket 4 is placed on the second end cover 3. Then, the impeller assembly 6 is installed on the spindle 8 in the first accommodating cavity 4-1a. After that, the liquid flow channel 1-5 of the outer shell 1 is covered on the outer periphery of the impeller assembly 6, the first end cover 2 is placed in the first connecting groove 1-3, potting compound is poured into the first connecting groove 1-3, and after the potting compound cures naturally to form the first potting fixing body 10, the outer shell 1 is flipped over, potting compound is injected into the second connecting groove 1-4, and after natural curing, the second potting fixing body 11 is obtained.

[0063] In summary, this water pump has a simple and compact structure, which simplifies the production process, improves production efficiency, and enhances the product's sealing performance.

[0064] The above examples are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. They should not be used to limit the scope of protection of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be included within the scope of protection of this utility model.

Claims

1. A novel water pump, characterized in that, include: The outer casing includes a side wall portion and a liquid flow channel portion disposed on the inner periphery of the side wall portion. The side wall portion is connected to a water inlet connector and a water outlet connector. The two ends of the side wall portion in the height direction are respectively provided with a first connecting groove and a second connecting groove arranged in the circumferential direction. There is a cavity portion between the side wall portion and the liquid flow channel portion that communicates with the water inlet connector. The water outlet connector communicates with the liquid flow channel portion. The first end cap is fixed inside the first connecting groove; The second end cap is fixed inside the second connecting groove; A bracket is disposed between the liquid flow channel portion and the second end cap; A stator core assembly is disposed between the bracket and the second end cover; A circuit board assembly is disposed between the bracket and the second end cover and is electrically connected to the stator core assembly; An impeller assembly, which is rotatably mounted on the bracket and located inside the liquid flow channel; The first potting fixing body is disposed in the first connecting groove and is used to fix the first end cap to the outer shell. The second glue-filled fixing body is disposed in the second connecting groove and is used to fix the second end cap, bracket and outer shell together.

2. The novel water pump according to claim 1, characterized in that: The bracket includes a first support portion recessed from the first end cap toward the second end cap, a second support portion arranged on the outer periphery of the first support portion and protruding toward the first end cap, a third support portion arranged on one side of the second support portion and abutting against the second end cap, a fourth support portion arranged on the other side of the second support portion and protruding toward the first end cap, and a fifth support portion connecting the second support portion and the fourth support portion. The impeller assembly is installed in the first accommodating cavity formed by the first support portion, the stator core assembly is installed in the second accommodating cavity formed by the second support portion, the circuit board assembly is installed in the third accommodating cavity formed by the fourth support portion, and the fifth support portion is provided with multiple wire grooves for wires to pass through.

3. The novel water pump according to claim 2, characterized in that: The outer end of the third support is bent and limited on the limiting step on the outer shell and connected to the second potting fixing body.

4. The novel water pump according to claim 2, characterized in that: The outer end of the fourth support abuts against the second end cap and its side is connected to the second potting fixing body.

5. The novel water pump according to claim 2, characterized in that: A mandrel is fixed inside the first accommodating cavity of the first support portion, and the impeller assembly is supported on the mandrel by bearings.

6. The novel water pump according to claim 5, characterized in that: The first accommodating cavity is provided with a mandrel positioning stage, and the mandrel is fixedly connected to the mandrel positioning stage.

7. The novel water pump according to claim 5, characterized in that: The impeller assembly includes an impeller and a magnet fixed to the inner circumference of the impeller, with the impeller covering the outer circumference of the second support portion.

8. The novel water pump according to claim 1, characterized in that: Multiple reinforcing ribs connect the liquid flow channel portion and the side wall portion.

9. The novel water pump according to claim 1, characterized in that: The first end cap includes a first cover body and a first fixing foot disposed on the periphery of the first cover body. The first fixing foot extends into the first connecting groove and is fixedly connected to the first potting fixing body.

10. The novel water pump according to claim 1, characterized in that: The second end cap includes a second cover body and a second fixing foot disposed on the outer periphery of the second cover body. The second fixing foot extends into the second connecting groove and is fixedly connected to the second potting fixing body.

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